МЕТОДОЛОГИЧЕСКИЕ ОСОБЕННОСТИ В ТЕХНИЧЕСКИХ ТРЕБОВАНИЯХ К МАСЛАМ ДЛЯ ДИЗЕЛЬНЫХ И БЕНЗИНОВЫХ ДВИГАТЕЛЕЙ В НОВЫХ СПЕЦИФИКАЦИЯХ
Стр.58-62
DOI: 10.32758/2782–3040-2025-0-2-58-62
УДК 621.43:621.892
V. A. Zolotov
(FAE «The 25th State Research Institute of Chemmotology of Ministry of Defence of the Russian Federation», Moscow, Russia)
Keywords: diesel, gasoline engine, engine oils, properties, specification, test method.
Abstract. Analytical information is presented on the technical requirements for the performance properties of the latest generation of oils for promising diesel and gasoline engines and the planned introduction of new specifications, taking into account the peculiarities of the development of engine building, energy conservation and environmental protection in modern conditions of global economic development. The features of new test methods, as well as changes in standards for oil quality indicators, are considered.
The result of the initiative of the relevant industrial sectors of China was the development of the China D1 specification for heavy-duty engine oils in the region. The specification was developed by an expert group of China’s largest manufacturers of commercial equipment together with manufacturers of lubricants and additives PetroChina (CNPC), Sinopec and non-profit independent organizations.
The Japanese Automobile Standards Organization (JASO) has developed a new specification JASO GLV-2, which sets technical requirements for the next generation of motor oils with an ultra-high viscosity index. The JASO GLV-1 specification was previously developed for low viscosity oils, the use of which reduces friction in the engine, resulting in increased fuel efficiency and reduced emissions in accordance with the standards applicable to new engines. The new specification provides significant fuel savings in comparison with the previous JASO GLV-1 specification due to the use of low-viscosity all-season oils 0W-8 and 0W-12.
A key factor in the development by the International Committee for Standardization and Approval of Lubricants (International Lubricant Standardization and Approval Committee — ILSAC) of the new ILSAC GF-7 specification was the introduction into the scope of oil tests of a modified method for assessing their effect on premature ignition of the fuel mixture at low rpm and high torque (Low Speed Pre-Ignition — LSPI).